1. Mahatthanajatuphat, C., S. Saleekaw, P. Akkaraekthalin, and M. Krairiksh, "A rhombic patch monopole antenna with modified minkowski fractal geometry for UMTS, WLAN, and mobile WiMAX application," Progress In Electromagnetics Research, Vol. 89, 57-74, 2009.
doi:10.2528/PIER08111907        Google Scholar

2. Fan, S.-T., Y.-Z. Yin, H. Li, S.-J. Wei, X.-H. Li, and L. Kang, "A novel tri-band printed monopole antenna with an embedded ∩-shaped slot and a parasitic ring resonator for WLAN and WiMAX applications," Progress In Electromagnetics Research Letters, Vol. 16, 61-68, 2010.
doi:10.2528/PIERL10061507        Google Scholar

3. Panda, J. R. and R. S. Kshetrimayum, "A printed 2.4 GHz/5.8 GHz dual-band monopole antenna with a protruding stub in the ground plane for WLAN and RFID applications," Progress In Electromagnetics Research, Vol. 117, 425-434, 2011.        Google Scholar

4. Ren, X.-S., Y.-Z. Yin, W. Hu, and Y.-Q. Wei, "Compact tri-band rectangular ring patch antenna with asymmetrical strips for WLAN/WIMAX applications," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 13, 1829-1838, 2010.        Google Scholar

5. Xie, J.-J., Y.-Z. Yin, J. Wang, and S.-L. Pan, "A novel tri-band circular slot patch antenna with an EBG structure for WLAN/WiMAX applications," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 4, 493-502, 2012.
doi:10.1163/156939312800030703        Google Scholar

6. Mahatthanajatuphat, C., P. Akkaraekthalin, S. Saleekaw, and M. Krairiksh, "A bidirectional multiband antenna with modified fractal slot fed by CPW," Progress In Electromagnetics Research, Vol. 95, 59-72, 2009.
doi:10.2528/PIER09061603        Google Scholar

7. Liu, H.-W., C.-H. Ku, and C.-F. Yang, "Novel CPW-fed planar monopole antenna for WiMAX/WLAN applications," IEEE Antennas Wireless Propagation Letters, Vol. 9, 240-243, 2010.        Google Scholar

8. Zhao, Q., S.-X. Gong, W. Jiang, B. Yang, and J. Xie, "Compact wide-slot tri-band antenna for WLAN/WiMAX applications," Progress In Electromagnetics Research Letters, Vol. 18, 9-18, 2010.
doi:10.2528/PIERL10081601        Google Scholar

9. Chang, T.-N., G.-Y. Shen, and J.-M. Lin, "CPW-fed antenna covering WiMAX 2.5/3.5/5.7 GHz bands," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 2-3, 189-197, 2010.
doi:10.1163/156939310790735589        Google Scholar

10. Teng, X. Y., X.-M. Zhang, Z. X. Yang, Y. Wang, Y. Li, Q. F. Dai, and Z. Zhang, "A compact CPW-fed omni-directional monopole antenna for WLAN and RFID applications," Progress In Electromagnetics Research Letters, Vol. 32, 91-99, 2012.        Google Scholar

11. Deng, J.-Y., L.-X. Guo, Z.-Y.liu, R.-R. Wu, and J.-H. Yang, "Dual-band antenna with inserted edge resonators and U-slot DGS," Journal of Electromagnetic Waves and Applications, Vol. 26, No. 10, 1292-1299, Jul. 2012.
doi:10.1080/09205071.2012.698217        Google Scholar

12. Liu, W.-C., C.-M. Wu, and Y. Dai, "Design of triple-frequency microstrip-fed monopole antenna using defected ground structure," IEEE Transactions Antennas Propagation, Vol. 59, No. 7, Jul. 2011.        Google Scholar

13. Pei, J., A.-G. Wang, S. Gao, and W. Leng, "Miniaturized triple-band antenna with a defected ground plane for WLAN/WiMAX applications," EEE Antennas Wireless Propagation Letters, Vol. 10, 298-301, 2011.        Google Scholar

14. Arya, A. K., A. Patnaik, and M. V. Kartikeyan, "Microstrip patch antenna with skew-F shaped DGS for dual band operation," Progress In Electromagnetics Research M, Vol. 19, 147-160, 2011.
doi:10.2528/PIERM11052305        Google Scholar

15. Geng, J.-P., J. Li, R.-H. Jin, S. Ye, X. Liang, and M. Li, "The development of curved microstrip antenna with defected ground structure," Progress In Electromagnetics Research, Vol. 98, 53-73, 2009.
doi:10.2528/PIER09081905        Google Scholar